During roughly the same period, Israeli relations with many countries in Europe including Greece and Cyprus in the context of the Energy Triangle and in Asia, including China and India, were enhanced, largely on account of the growth of Israel's high-tech economy.
The first international organization which the Israeli government joined was the International Wheat Council, established as part of Point Four Program in early 1949.
But IS has targeted Sufis several times in the area in the past, notably beheading a leading Sufi religious figure, the blind sheikh Suleiman Abu Heraz, last year and posting photos of the killing online.
Egypt’s presidency declared a three-day mourning period, as President Abdel-Fattah el-Sissi convened a high-level meeting of security officials.
Resident Ashraf el-Hefny said many of the victims were workers at a nearby salt factory who had come for Friday services at the mosque.
They also blocked off escape routes from the area by blowing up cars and leaving the burning wrecks blocking the roads, three police officers on the scene said, speaking on condition of anonymity because they were not authorized to talk to the press.
Dozens of bloodied bodies wrapped up in sheets were laid across the mosque floor, according to images circulating on social media.
The result has been a long, grinding conflict centered on el-Arish and nearby villages and desert mountains.
The militants have been unable to control territory, but the military and security forces have also been unable to bring security, as the extremists continuously carry out attacks.